How can I zoom a Latex maths formula to XXL for a pasting it as image into a presentation slide?

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What I’m trying to do

Zoom a latex math formula to XXL for a presentation slide in LibreOffice Impress in Linux.

Things I have tried

I searched with “XXL zoom of Latex math formula for slides”. I asked chatGPT.

I tried
$$\Huge (Latex Math Formula) $$
in Obsidian and zoomed the file in as much as possible. Still it isn’t big enough for a presentation slide.

Have you tried Codecogs LaTeX editor and svg-download etc?

Right now I have tried Codecogs LaTeX editor and svg-download.
I found that this approach is working for me.
Apropos etc. → what else alternatives are there?

Codecogs Latex editor has a flaw: in my formula
$P {\small zahl}/\mu l =' \dfrac{P {\small gez} * L {\small Blut}/\mu l }{L {\small gez}}$
the editor ignores the small font size argument but renders all in normal font size.

So I would like to try an alternative to Codecogs Latex editor.

I mean there are other image formats in addition to svg. Codecogs has been around nearly 20 years I think, so you should view it as primary choice for LaTeX to image tool.

Next option would be Mathematics Meta Stack Exchange and formatting sandbox post. Right-click a formula, Math Settings, Math Renderer, svg. I’m not sure how to select the picture to copy but you could ask more help in that community.

After some searching I found two online converters that produce the desired result:
LaTeX to SVG and Convert LaTeX to SVG.

I found no operative app for installation on Manjaro Linux KDE-Edition.
Both the app KLatexFormula and the LibreOffice extension KLaTexFormula give an error when trying to export as an image: LaTeX Error: File `article.cls’ not found.

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